On June 29, 2018, Sagetdao “Deadly Star” Petpayathai, 31, of Singapore and “Cannon” Ma Jia Wen, 21, of China will compete at “ONE: Spirit of a Warrior” at the Thuwunna Indoor Stadium in Yangon, Myanmar. It marks the fourth ONE Championship bout of the Singaporean contender, who is an undefeated professional mixed martial artist.

When Petpayathai made his ONE Championship debut on March 11, 2017 at “ONE: Warrior Kingdom,” he knocked out Kelvin “Ice Man” Ong of Malaysia via knees and punches. On September 2, 2017 the Singaporean fighter knocked out Mahmoud Deab Mohamed of Egypt via punches at “ONE Championship: Shanghai.”

On December 9, 2017, Petpayathai scored his third ONE Championship win by knocking out Jimmy “The Silencer” Yabo, 37, of the Philippines via knee to the body at “ONE: Warriors of the World.” It was the Singaporean fighter’s most recent bout.

While Petpayathai currently holds a professional MMA record of 3 wins and 0 loss, Ma has 5 wins and 2 losses. All of the Chinese fighter’s 7 bouts were in the ONE Championship cage.

Ma is looking to continue his three-bout winning streak at “ONE: Spirit of a Warrior.” The last time he lost a bout was on May 6, 2016 when he was knocked out by Saygid Guseyn Arslanaliev, 23, of Russia via via punches at “ONE: Ascent to Power.”

On August 13, 2016, Ma knocked out Yabo via elbows at “ONE: Heroes of the World” and on March 1, 2017, the former knocked out Yohan “The Iceman” Mulia Legowo, 37, of Indonesia via punches at “ONE: Warrior Kingdom.” In the Chinese fighter’s most recent bout, which was at “ONE: Visions of Victory” on March 9, 2018, he submitted Ahmed “The Wolverine” Mujtaba, 24, of Pakistan via rear-naked choke.

Headlining “ONE: Spirit of a Warrior” are reigning ONE Middleweight and Light Heavyweight World Champion “The Burmese Python” Aung La N Sang of Myanmar and Ken Hasegawa of Japan. The Burmese champ will defend his middleweight champion belt from his Japanese challenger, who is making his ONE Championship debut.